1. If a person, either having seen or come to know something, does wrong by refusing as a witness under oath to give information, that individual shall bear the penalty;
2. or if someone, without being aware of it, touches any unclean thing, such as the carcass of an unclean wild animal, or an unclean domestic animal, or an unclean swarming creature, and thus is unclean and guilty;
3. or if someone, without being aware of it, touches some human uncleanness, whatever kind of uncleanness this may be, and then subsequently becomes aware of guilt;